| Physical Interfaces | 
| • Phone Interface: 16FXS, RJ-11 | 
| • Ethernet Interface:
  4* RJ-45 10/100Mbps, RJ-45 | 
| Voice & Fax | 
| • G.711A/U law, G.723.1, G.729A/B,G.726,iLBC,AMR | 
| • Comfort Noise Generation(CNG) | 
| • Voice Activity Detection(VAD) | 
| • Echo Cancellation(G.168) | 
| • Adaptive (Dynamic) Jitter Buffer | 
| • Hook Flash | 
| • Programmable Gain Control | 
| • T.38/Pass-through, up to 14.4kbps | 
| • Modem/POS | 
| • DTMF mode: Signal/RFC2833/INBAND | 
| FXS Port | 
| • Connector: RJ11 | 
| •Dial Mode: DTMF and Pulse | 
| • Pulse: 10 and 20 PPS | 
| • Caller ID: DTMF/FSK | 
| • Max Cable Length: 5KM | 
| • Reversed Polarit | 
| Protocol | 
| • TLS / SRTP | 
| • SIP V2.0 (RFC 3261,3262,3264) | 
| • IMS/3GPP | 
| • SDP (RFC 2327) | 
| • REFER (RFC 3515) | 
| • RTP/RTCP (RFC 1889,1890) | 
| • STUN (RFC 3489) | 
| • ARP/RARP (RFC 826/903) | 
| • SNTP (RFC 030) | 
| • DHCP/PPPoEv\ | 
| • TFTP/HTTP/HTTPS | 
| • DNS/DNS SRV (RFC 1706/RFC 27082) | 
| • VLAN 802.1P/802.1Q | 
| Supplement Service | 
| • Call Waiting | 
| • Blind  Transfer | 
| • Attend Transfer | 
| • Call Pickup | 
| • Call Forward on Busy | 
| • Call Forward on No Reply | 
| • Unconditional Call Forward | 
| • Hotline | 
| • Call Hold | 
| • DND | 
| • 3-way conference | 
| • Voicemail | 
| Call & Route | 
| • Port Group | 
| • IP Trunk | 
| • Primary and Secondary SIP Account | 
| • 32 Inbound/Outbound Routing | 
| • Number Manipulation | 
| • Digitmap | 
| Network Features | 
| • Static IP, PPPoE, DHCP Client | 
| • IPv4, IPv6 | 
| • Static/dynamic ARP | 
| • Traffic Shaping | 
| • Voice/Data/Management VLAN | 
| • DIFFServ, ToS | 
| Maintain & Upgrade | 
| • SNMP/TR069 | 
| • Auto Provisioning | 
| • Web/Telnet | 
| • Configuration Backup/Restore | 
| • Firmware Upgrade via WEB/TFTP | 
| • Syslog and CDR | 
| • Access Rule List | 
| • Network Capture | 
| • Outward Test(GR909) | 
| • Automatic Time Synchronization | 
| • IVR local Maintenance | 
| • Cloud-based Management | 
| Environment | 
| • Power Supply:100-240V,50-60Hz | 
 | Power Consumption:  35W | 
 | Temperature(Operation): -10 ℃  ~ 45 ℃ | 
                     | (Storage):   -20 ℃ ~80 ℃ | 
| • Humidity: 10%-90%  No condensation | 
| Dimension & Weight | 
| • 440(L)×230(W)×44(H)mm 2.7kg | 
| Homologation | 
| • CE,FCC | 
| • Elastix  / Broadsoft |